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Aug. 19, 1941. H. J. HYDE BUILDING BOARD Filed Sept. 9, 1938 f. WW M INVENTOR. JV )104 BY v z ATTORNEY.

Patented Aug. 19, 1941- UNITEDQISTATES PATENT OFFICE pressure will result in the pieces of facing material which are of sufiicient size extending through the adhesive layer l5 and into the board ID in such a manner that each piece, so extending, will act as a pin or nail holding the facing layer and board in an intimate relationship. The facing surface I! of the siding will at this stage present a substantially smooth appearance ornamented by the exposed surfaces of the pieces of granular material I6. The adhesive is now allowed to thoroughly harden and the facing layer composed of the adhesive [5 and stone I6 is permanently locked to the board I ll. Obvious- 1y, if a homogeneous appearance is desired, sufficient stone I6 must be used to completely cover the adhesive.

It will be apparent that a wide variety of deco- What is claimed isi I 1. A building material comprising a wooden board adapted to be secured directly to the frame studs of a building, said board having a surface having a multiplicity of preformed indentations, a weather covering for said surface and a multiplicity of pebbles having one portion of each thereof exposed outwardly of said covering and each having another portion thereof extending into said indentations for engagement therewith, said pebbles and said covering presenting a substantially smooth finish.

2. A building material comprising a Wooden board having a surface with a multiplicity of preformed indentations, a weather covering for said surface and a multiplicity of pebbles embedded in said covering, a substantial number of'said pebbles being individually large enough to extend from within said indentations entirely through said covering whereby said pebbles act to pin said covering to said board and to provide an ornamental exposed surface therefor.

HUBERT J. HYDE. 

